why is my car mis-firing?!?!

Spicy_MSP

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2003 MAZDASPEED Protege
so i was driving the other day and noticed my car felt like it was hesitating when i tried to get on the throttle more. the car runs fine if i dont jump on it but if i do it jolts and shakes. shortly after that the check engine light came on, the code was a 3rd cylinder miss fire. so i thought possibly an injector was going bad so i switched the 2nd and 3rd injectors and cleared the code and it still came up with the 3rd cylinder. im thinking maybe spark plugs, wires, or coil packs???? anyone know what could be the problem? i could really use some ideas
 
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Probably bad plugs, I see # 3 go bad first often too. I was talking to Zack and I think he had that too. All were 36-8 but one was 45ish.
 
I agree its eithers plugs, wires, or coils or at least thats what if often was on my old p5. I'm sure the same holds true for the msp's.
 
yea sorry guys i forgot about this thread. im not sure what it was exactly. i just replace my whole ignition system (plugs, wires, coilpacks, etc.)
 

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